Unvaccinated People Were More Likely To Be Reinfected

6th January 2022

The rate of reinfections was low in the UK between 2 July 2020 and 1 December 2021.

People who received a second vaccine dose over 90 days ago were more likely to be reinfected than those who received it 14 to 89 days ago.

Unvaccinated people were three times more likely to be reinfected than those who had their second vaccine 14 to 89 days ago.

People were more likely to be reinfected if they had a lower viral load at their initial infection.

The risk of reinfection was higher when the Delta variant of COVID-19 was the dominant strain (from 17 May 2021) than when the Alpha variant was dominant.

Because of the time period contributing to this analysis, Omicron infections will not be impacting these estimates.

This item is from
https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/conditionsanddiseases/articles/coronaviruscovid19latestinsights/infections